Plate rolling production
Plate rolling shop for production of hot rolled products. Heating slabs before rolling.
Walking beam furnaces.
The project of replacing the failed sections of the old tube recuperator with all connecting dimensions kept.
The heating temperature of the combustion air increased from 140 degrees (obsolete recuperator) to 380 — 450 degrees, which ensures the stated payback period of the equipment.
Year of implementation
2015
Scope of delivery
Recuperator manufacturing, delivery, installation supervision and commissioning.
Result
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
Inspection confirmed no defects detected in 2016
PERFORMANCE PARAMETERS
(per 1 section):
(per 1 section):
HOT SIDE
COLD SIDE
Inlet temperature, °С
950
0
Outlet temperature, °С
644
464
Flow rate, Nm3 / h
31 000
24 300
Pressure drop in channels, mm. WG
10
144
Thermal power, kW
4 198
Thermal efficiency, %
48,8
Plate rolling shop for production of hot rolled products. Heating slabs before rolling.
№ 1,2,3 walking beam furnaces.
The modernization program of the energy system of plate rolling mill. The project of replacing the failed sections of the tube recuperator.
The temperature of the combustion air increased to 450 degrees, which provided access to the planned savings on natural gas and allowed excluding one out of two working exhaust fan in waste heat boiler room, as well as to raise the temperature of steam produced.
Year of implementation
2015-2016
Scope of delivery
Recuperator manufacturing, delivery, installation supervision and commissioning.
Result
During operation all the performance parameters, the declared efficiency and payback period have been achieved.
PERFORMANCE PARAMETERS:
HOT SIDE
COLD SIDE
Inlet temperature, °С
1 000
0
Outlet temperature, °С
675
449
Flow rate, Nm3 / h
163 500
141 665
Pressure drop in channels, mm. WG
24
531
Thermal power, kW
23 738
Thermal efficiency, %
44,9
